 | Emily Browning als Anna |
 | Arielle Kebbel als Alex |
 | David Strathairn als Steven |
 | Elizabeth Banks als Rachael |
 | Maya Massar als Mom |
 | Kevin McNulty als Sheriff Emery |
 | Jesse Moss als Matt |
 | Dean Paul Gibson als Dr. Silberling |
 | Don S. Davis als Mr. Henson |
 | Lex Burnham als Iris |
| Matthew Bristol als David |
 | Danny Bristol als Samuel |
 | Heather Doerksen als Mildred |
 | Alf Humphreys als Priest |
 | Ryan Cowie als Orderly |
 | Troy Rudolph als Orderly |
 | John Prowse als Butcher |
| Debra Zane | Casting |
| Walter F. Parkes | Producer |
| Andrew Menzies | Production Design |
| Christian Wagner | Editor |
| Heike Brandstatter | Local Casting |
| Coreen Mayrs | Local Casting |
| Christopher Young | Original Music Composer |
| Laurie MacDonald | Producer |
| Ivan Reitman | Executive Producer |
| Scott A. Hecker | Supervising Sound Editor |
| Denise Horta | Dialogue Editor |
| Greg P. Russell | Sound Re-Recording Mixer |
| Casey Grant | Unit Production Manager |
| Casey Grant | Co-Producer |
| Kirk Moses | Assistant Editor |
| Doug Davison | Executive Producer |
| Roy Lee | Producer |
| Gitte Axen | Makeup Artist |
| Michael Grillo | Executive Producer |
| Michael Grillo | Unit Production Manager |
| Dominique Fauquet-Lemaitre | Set Decoration |
| Marny Eng | Stunt Coordinator |
| Jim Page | Editor |
| Tom Pollock | Executive Producer |
| Victoria Down | Key Makeup Artist |
| Bill Terezakis | Makeup Effects Designer |
| Caitlin McKenna | ADR Voice Casting |
| Craig Rosenberg | Author |
| Trish Keating | Costume Design |
| Stefan Sonnenfeld | Digital Intermediate |
| Kim Jee-woon | Original Story |
| Charles Guard | Director |
| Doug Miro | Author |
| G.W. Brown | Dialogue Editor |
| G.W. Brown | ADR Editor |
| David E. Fluhr | Additional Sound Re-Recording Mixer |
| Carlo Bernard | Author |
| Thomas Guard | Director |
| Daniel Landin | Director of Photography |
| James Bitonti | Second Assistant Director |
| Vince Filippone | First Assistant Editor |
| Hugo Weng | Dialogue Editor |
| Gary A. Hecker | Foley |
| Leigh Folsom Boyd | First Assistant Editor |
| Tannis Vallely | Casting Associate |
| William H. Orr | Special Effects Coordinator |
| Margot Ready | Art Direction |
| Debbie Geaghan | Costume Supervisor |
| Charles Leitrants | Construction Coordinator |
| Jeffrey J. Haboush | Sound Re-Recording Mixer |
| Michael J. Broomberg | Foley |
| Stephen S. Campanelli | Camera Operator |
| David Clarke | Set Designer |
| Kimberly French | Still Photographer |
| Lorraine Rozon | Visual Effects Producer |
| Andrew W. Davidson | Gaffer |
| David Werntz | Sound Effects Editor |
| Bruce Woloshyn | Visual Effects Supervisor |
| Miguel Rivera | ADR Supervisor |
| Miguel Rivera | Supervising ADR Editor |
| Miguel Rivera | Supervising Dialogue Editor |
| Susan Lambie | Script Supervisor |
| Bryan Korenberg | Property Master |
| David Holm | Transportation Captain |
| Nick Monton | Digital Intermediate Producer |
| Tiffany S. Griffith | Dialogue Editor |
| David Parker | Additional Sound Re-Recording Mixer |
| Sean M. Harding | First Assistant Camera |
| Rick Hromadka | Sound Effects Editor |
| Rick Hromadka | Sound Effects Designer |
| Lee Anne Muldoon | Unit Publicist |
| Chris Roff | Visual Effects Producer |
| Missy Papageorge | Digital Intermediate |
| Jeff Sawyer | Sound Effects Editor |
| Donna Bis | Hairstylist |
| Sherry Linder-Gygli | Key Hair Stylist |
| Michel Aller | First Assistant Editor |
| Scott Irvine | Transportation Coordinator |
| Jason Crosby | Marine Coordinator |
| Bev Wright | Makeup Artist |
| Clint Wilcox | Transportation Co-Captain |
| Rob Young | Sound Mixer |
| Alicia Johnson | Visual Effects Coordinator |
| Keith Woods | Rigging Gaffer |
| Laura Lee Connery | Stunt Double |
| Teresa Ngan | Art Department Assistant |
| Dean Collins | Rigging Grip |
| Gail Barrett | Assistant Costume Designer |
| Karen Schell | Sound Assistant |
| Stephen Nakamura | Digital Intermediate Colorist |
| Michael Hibberson | Boom Operator |
| Kim Olsen | Key Grip |
| Jim Brebner | First Assistant Director |
| Lisa Leung | Art Department Coordinator |
| James S. Harvey | Lighting Technician |
| Derek Pippert | Foley Editor |
| Terry Garcia | Assistant Sound Editor |
| Anthony Chruszcz | Set Dresser |
| Dan Fraser | Lighting Technician |
| Shelley Maclean | Visual Effects Editor |
| Bill Burns | Location Manager |
| Shaun Gordon | Post Production Coordinator |
| Tricia Chiarenza | Color Timer |
| Charlene Callihoo | First Assistant Accountant |
| Shannon McFarlane | Set Dresser |
| Haida Harper | Assistant Property Master |
| Kathleen Whelan | Production Office Coordinator |
| Abigail Callahan | Post Production Supervisor |
